direwolf: update direwolf to version 1.8.1

* Update version to 1.8.1
* Change github.tarball_from to archive and remove prompt message
* Add new dependancy, hidapi

science/direwolf/Portfile

@@ -14,12 +14,12 @@ long_description    Dire Wolf is a software \"soundcard\" AX.25 packet \
     observe APRS traffic, as a tracker, digipeater, APRStt gateway, or \
     Internet Gateway (IGate).
 
-github.setup        wb2osz  direwolf 1.7
-# Change github.tarball_from to 'releases' or 'archive' next update
-github.tarball_from tarball
-checksums           rmd160  cff4f910fa7e06e0fcb23cd97d796a9785f99190 \
-                    sha256  eb2c84d0cc06b3c5f7dcef5a5c99c6c7cbf544b5a822cfb835395ed5204a0697 \
-                    size    20587822
+github.setup        wb2osz  direwolf 1.8.1
+github.tarball_from archive
+
+checksums           rmd160  2bab06dbe2ea10af76f0db18a4e29d7aa7248009 \
+                    sha256  89d5f7992ae1e74d8cf26ec6479dde74d1f480bde950043756e875a689d065d7 \
+                    size    20000479
 
 depends_build-append \
     port:pkgconfig
@@ -27,7 +27,8 @@ depends_build-append \
 depends_lib-append \
     path:lib/libhamlib.dylib:hamlib \
     port:portaudio \
-    path:lib/libgps.dylib:gpsd
+    path:lib/libgps.dylib:gpsd \
+    port:hidapi
 
 cmake.build_type    Release